OEOMAQNETIC SURVEI QUIBORD TOWNSHIP GROUP #2 HOLLINGER CONSOLIDATED GOLD MINES, LTD. 42Ae9SE0268 63.1502 GUIBORD (711(71 Introduction During the period January 5 - February 26, 1965, a magnetometer survey of the following 63 claims reoordsd in the name of Hollinger Consolidated Gold Mines, Ltd. was carried outi - L-79324-25 incl., L-79330-U incl., L-79358-59 incl., L-79378-80 incl., L-79382-95 incl** L-794U-31 incl., L-88031-42 inol., The claims are located in Quibord Township, Larder Lake Mining Division. The results of the survey are plotted on the attached map, scale l" -400'. The claims are part of a larger group on which the survey will be completed during the summer of 1965* Personnel Employed on the Survey. M. Buteau acted as instrument operator and P* Laverdiere acted as helper. Mileage Read Lines were spaced 400' apart and stations located at 100* intervals. Readings were taken where necessary at 50' intervals. A total of 67.6 miles of grid lines and 2822 stations were read. The main base station was established at O 4 00 on XL-112 E, B.L. No. l, Type of Instrument Used The survey was carried out with an ABEN MZ-4 Torsion Magnetometer with a sensitivity of 9.5 gamma per scale division.
Results of the Survey - 2 - The geology of Guibord Township is shown on Map No. 1951-6 - "Township of Guibord" - scale l" - 1000' by the Ontario Department of Mines. With the exception of claims L-79358 and L-79359, outcrops are scarce on the property. A belt of sedimentary rocks designated "A" on the attached map is shown on Map No. 1951-6 extending eastward from the west boundary of Guibord Township to the east side of Lot 6. On the property under discussion, these sediments display low magnetic intensities and low relief. The north contact of this belt crosses the south end of claims L-79385 and L-79379, passing east-west through Guibord Lake* The sedimentary belt narrows at the west side of lot 4 in Concessions 4 and 5, but the magnetic pattern suggests that it continues southeastward to pinch out at the east side of Lot 3 in Concession 4* In Lot 5, Concession 6, the north contact of the sedimentary belt is indicated by a sharp rise in magnetic intensity from approximately 500 gamma over the sediments to 20004 gamma to the north. A belt of ultrabasic rocks in interpreted adjaoent to the sediments trending east* west through claims L-79385 and L-79379 and the south part of L-79378. This is designated "B 1* on the map. Outcrops adjacent to the northeast corner of L-79378 suggest that the north part of that claim is underlain by basic flow rooks (andesite) indicated by a magnetic intensity of approximately 600 gamma* On claims L-79424, L-79425, L-79428 and L-79429, a cone of "lows" and "highs 11 designated "C* coincides with outcrops of andesite intruded by a north-south diabase dike and an irregular syenite mass.' At 66 -f 00 South on XL-56 E, a peak of 1200 gamma occurs as part of an east-west linear anomaly extending from XL-52 E to XL-60 E. This probably represents iron formation. The sudden termination of this irregular tone just east of XL-60 E might be indicative of a northeast trending fault as shown on Map No. 1951-6. On claims L-79358 and L-79359 a cone of "lows" and "highs" designated "D" coincides with outcrops of andesite and more basic rooks. A north-south diabase dike cuts the volcanic rooks* In the south part of claim L-79359, a magnetic peak over 2500 gamma coincides with an andesite
-3 - outcrop. Field investigations have shown the presence of pyrrhotite rich iron formation in this outcrop. On claims L-79430, L-79431 and the west half of L-88038, a zone designated as "E" indicates the presence of ultrabasic rooks. From 43 * 00 S on XL-84 E, a belt of anomalously high magnetics, designated "F", trends southeastward through claim L-88035* thence eastward through claims L-88033, L-88039, L-88040, approximately 400' in width. In the east part of L-88040 this tone starts to widen and at the east side of claim L-88042 has a width greater than 2000*. On claim L-88Q35, a linear peak up to 2193 gamma extends from 47 * 00 S on XL-96 E to 44 * 00 B on XL-104 E. Pyrrhotite rich iron formation occurs on the axis of this peak. In Lot 2 t it is possible that the anomaly represents ultrabasic rocks. From 50 * 00 S on XL-112 E, a linear anomaly designated "O" trends slightly south of east and passes out of the claim group at 37 * 00 S on XL-148 E. This will represent either ultrabasic rocks or iron formation layers in volcanic rocks. A large syenite mass is known to lie to the north of No. l Baseline in Lots 2 and 3* The contact is believed to lie just south of Wayne Lake as shown on Map 1951-6. It is difficult to interpret the position of the contact of the syenite from the magnetic intensities. Lying south of Baseline No* l an irregular sone of medium magnetic intensities designated "H", probably indicates basic volcanic rooks. This is supported by a drill hole on claim L-79326 which intersected andesite with narrow syenite or porphyry dikes. April 8, 1965. Q.D. Robinson. 0.--tKR^~,
ELECTROMAGNETIC SURVEY GUIBORD TOWNSHIP GROUP #2 HOLLINGER CONSOLIDATED OOID MINES, LTD. 42A09SE8268 63.1582 GUIBORD (7)P*(7) Introduction,, t,fx* sr^ During the period February I - 25* 1965 a^agnetometer survey of the follovdng 44 claims, recorded in the name of Hollinger Consolidated Gold Mines, Ltd., was carried outi - L-79324-25 incl., L-79330-36 incl., L-79358-59 incl., L-79382, L-79387-90 incl., L-79392-95 incl., L-794U-20 inol., L-79421-31 incl., L-88031, L-88034-38 inol. The claims are located in Guibord Township, Larder Lake Mining Division. The results of the survey are plotted on the attached map, scale l" - 400'. The claims are part of a larger group on which the survey will be completed during the summer of 1965. Personnel Employed on the Survey, M. Buteau acted as instrument operator and P. Laverdiere acted as helper. Mileage Read Lines were spaced 400* apart and stations located at 100* intervals. Readings were taken where necessary at 50* intervals. A total of 51 miles of grid lines and 1895 stations were read, Type of Instrument Used The survey was performed using a Ronka Mark III Electromagnetometer. This instrument consists of two coils, designated transmitter and receiver coils, connected by a compensating cable of, in this cast, 300* length. A transmitter capable of transmitting an alternating signal of 876 c.p.s, (low frequency) or 2400 c.p.s. (high frequency) if connected t* the transmitter coil. A receiver console, with In-Phase and Out-of^Phase dials, is connected to the receiving coil*
- 2 - During field operation, one man carries the transmitter and transmitter coil, and the other nan carries the receiver console and receiver coil. They proceed along a traverse line separated by the length of the compensating cable* At each station, when the transmitter is turned on, a primary electromagnetic field is created, which induces a voltage in the receiving coil. This voltage is compensated by a voltage transmitted directly to the receiver through the compensating cable. If a conducting body such as a sulphide mass is present between or near the ooils, a voltage and hence a current will be induced in this conductor, and a secondary electromagnetic field will be created. This secondary electromagnetic field will also induce a voltage in the receiving coil and destroy the balance in the receiver console* In order to restore the balance, it will be necessary to adjust the In-Phase and Out-of-Phase controls. The voltage induced in the receiving coil due to the secondary field may be in-phase or out-of-phase with the primary field. The values read on the controls of the receiver console are a measure of the in-phase and out-of-phase components of this secondary field. Most naturally occurring conductive bodies will produce both negative in-phase and out-of-phase relative variations in the readings* A relatively large in-phase reading compared to the corresponding out-ofphase reading is indicative of good conductivity. The instrument is ceroed prior to a survey with the coils in the same horizontal plane. During the course of a survey, when passing over rough terrain, if the coils are tilted an appreciable amount with respect to each other, the component of the primary field received by the receiving coil will be altered. This will produce a negative in-phase anomaly. The out-of-phase readings should not be affected. Rough terrain may also cause a shortening of the distance between the coils, which will produce an apparent positive in-phase anomaly. Over magnetite-rich Bones, it has been observed that a large positive in-phase and corresponding negative out-of-phase anomaly may be indicated.
faults of the Survey Anomalies A. B. C -3 - These anomalies are located on claims L-79359 and L-79358. Both in-phase and out-of-phase components are very strong indicating good conductivity. Anomaly A coincides with an iron formation horison approximately 10' in width and traced for 400' in length, consisting of massive pyrrhotite. Further detailed geological mapping is required, but it is probable that anomalies B and C are caused by parallel bands of similar material. Anomaly D This anomaly displays poor in-phase to out-of-phase ratios, indicating weak conductivity. The cause is unknown, but may be disseminated sulphides or shearing in an ultrabasic rock. Anomaly E This anomaly displays good continuity. Both in-phase and out-ofphase components are present* Ratios are poor indicating poor conductivity. This lies adjacent to the north side of magnetic anomaly C, in an overburden covered area. The cause is unknown at present* Anomalies F. Q. H. I. J. K. L These are all very weak conductors, and indicated only on the out-of-phase profiles* This type of anomaly could be caused by weak bedrock conductivity such as disseminated sulphides, poorly conductive graphite, or shearing in soapstone. They could alto represent overburden conductivity. Anomalies F and O might represent shearing in soapstone as they fall within or near magnetic anomaly E, thought to be caused by peridotite. Disseminated pyrrhotite occurs in a narrow iron formation band near the axis of anomaly L, and might be the cause. Detailed geological mapping of this claim group will be undertaken during the summer of 1965, and should aid in clarifying the nature of at least some of the conductors noted* April 8, 1965.
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L-15337 L-88032 ^L-68033 (-86039 L-88040 L-68042 /l A K 36 E 40 E 44E 46 E 52 E L- 73386 L- 73440 L-73433 32 E 36 E.' READINGS IN PERCENT INDICATE TOTAL RESULTANT FIELD PLOTTED THUS: N PHASE OUT OF PHASE INSTRUMENT: RON KA MK. Ill HIGH FREQUENCY. CABLE LENGTH: 300 FEET. READINGS PLOTTED AT MID-POINT OF SEPARATION PROFILE SCALE: l INCH ^ 20 PERCENT. 42Aa9SE0268 63.1502 GUIBORD 2S0 HOLLINGER CONS GOLD MINES, LTD. GUIBORD TWP. GROUP 2 (EAST PART) SC A t. E: J "-TO 400* ~'' * - -* *" j ' i* t * * "is., ELECTROMAGNETIC SURVEY